absorption lines

Dark lines in a continuous spectrum caused by absorption by a gaseous element. The positions (i.e., wavelengths) of the dark absorption lines are identical to those of the bright lines given by the same element in emission.

Dictionary of automotive terms. 2015.

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  • absorption lines — absorption bands or absorption lines plural noun Dark bands or lines interrupting a spectrum, due to absorption of light in the medium traversed • • • Main Entry: ↑absorb …   Useful english dictionary

  • absorption lines — dark lines in the spectrum due to absorption of light by the substance (usually an incandescent gas or vapor) through which the light has passed. Cf. absorption bands …   Medical dictionary

  • absorption bands — or absorption lines plural noun Dark bands or lines interrupting a spectrum, due to absorption of light in the medium traversed • • • Main Entry: ↑absorb …   Useful english dictionary

  • Absorption spectroscopy — An overview of electromagnetic radiation absorption. This example discusses the general principle using visible light as a specific example. A white beam source – emitting light of multiple wavelengths – is focused on a sample (the complementary… …   Wikipedia

  • Absorption spectrum — A material s absorption spectrum shows the fraction of incident electromagnetic radiation absorbed by the material over a range of frequencies. An absorption spectrum is, in a sense, the opposite of an emission spectrum.Every chemical element has …   Wikipedia

  • absorption line — noun : a dark line in the absorption spectrum of a gas or a vapor * * * absorption line, a dark line in a continuous spectrum of white light caused by the natural or artificial absorption of the wavelengths of light radiating from the atoms of a… …   Useful english dictionary

  • absorption bands — dark bands in the spectrum due to absorption of light by the medium (a solid, a liquid, or a gas) through which the light has passed. Cf. absorption lines, under line …   Medical dictionary

  • absorption spectrum — n an electromagnetic spectrum in which a decrease in intensity of radiation at specific wavelengths or ranges of wavelengths characteristic of an absorbing substance (as chlorophyll) is manifested esp. as a pattern of dark lines or bands compare… …   Medical dictionary

  • absorption spectrum — n. a spectrum with a pattern of dark bands or lines created when light passes through a gas or liquid into a spectroscope: the chemical elements of the gas or liquid absorb specific wavelengths of light creating a unique pattern which can be used …   English World dictionary

  • Absorption spectrum — Spectrum Spec trum, n.; pl. {Spectra}. [L. See {Specter}.] 1. An apparition; a specter. [Obs.] [1913 Webster] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and… …   The Collaborative International Dictionary of English

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